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Why does my car fan stay on after I turn it off?
It is ok for the engine cooling fan to keep running for a few minutes after turning off the car. Your car fan will run for a few minutes after you turn off the car then turn it off. When the engine is turned off, the coolant doesn’t circulate, and the heat stays trapped, therefore prolonging the engine from cooling.
What are the symptoms of a faulty cooling fan switch?
Keep a lookout for the following bad cooling fan relay symptoms:
- The engine runs hot or overheats.
- The cooling fans don’t work.
- The cooling fans keep running.
- Warning lights.
- Poor air conditioning performance.
- Swapping Relays.
- Measuring the Relay Coil’s Resistance.
- Listening for Noises.
How can you tell if a fan relay is bad?
Engine running hot One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. If you notice that your engine is running at higher temperatures than normal, that may be a sign that the relay is not functioning properly.
Why does my cooling fan keep running?
Cooling fans stay on at all times If the cooling fans are staying on at all times, this is another (less common) symptom of a possible problem with the cooling fan relay. If the relay shorts internally, it may cause power to be permanently switched on, which will cause the fans to run at all times.
Where is coolant temperature sensor?
The Engine Coolant Temperature Sensor can be located in a few places, depending on the vehicle and its manufacturer. It is most often located close to the thermostat of the cooling system or inside of it. The cooling system is located beneath the air intake pipe and behind the right cylinder.
How do I know if my coolant temp sensor is bad?
Bad Coolant Temperature Sensor Symptoms
- Check Engine Light.
- Poor Mileage.
- Electrical Cooling Fans not coming on.
- Black Smoke from the Exhaust Pipe.
- Difficult Starting Condition.
- Engine Overheats.
- Poor Idling.
- Poor Engine performance.
How do I know if my radiator fan motor is bad?
The first symptom or sign that something has gone wrong is that your cooling fan doesn’t come on at all. This is the most common symptom of a faulty cooling fan motor, but it may not be one you notice while driving your vehicle. If the motor burned out or starts to fail in any way, the cooling fans are disabled.
How much does a fan relay cost?
The average for Cooling Fan Relay is $478
Repair Type | Zip | Cost |
---|---|---|
Cooling Fan Relay | 13045 | $373 |
Cooling Fan Relay | 78452 | $464 |
Cooling Fan Relay | 23359 | $596 |
Why Does My Car fan come on when I start it?
If the fan comes on, you may have a bad temperature sensor or gauge. 2. A cooling fan temperature switch (or sensor, in some vehicles) can also get stuck, which may cause the fan to run continuously any time you turn the ignition key on or start the engine. Troubleshoot the switch.
Does the coolant temperature sensor control the fan?
The sensor works by measuring the temperature that’s being given off by the thermostat and/or the coolant itself. The temperature is then sent to the on-board control system. As the control system receives the temperature from the CTS, it may trigger the cooling fan to either shut off or turn on.
Why does my car cooling fan run even when turned off?
When the engine is turned off, the coolant doesn’t circulate, and the heat stays trapped therefore prolonging the engine from cooling. Running cooling fans help cool down the engine even after you turn off car. Common Causes. If your cooling fan runs for over 10 minutes after turning off the engine, you may have a problem that needs to be fixed.
How do you check the cooling fan on a car?
How to check your car’s cooling fan Set the car heater to cold Run the car until the engine reaches normal temperature. Allow the engine to idle for around five minutes Watch your temperature gauge – don’t allow the car to overheat The cooling fan should cut in automatically and the temperature gauge drop back to normal.
How long do Volkswagen cooling fans run after turning it off?
The thought of walking away from your Volkswagen with the cooling fans buzzing away leaves most people with images in their heads of dead batteries and tow trucks. Rest assured—this is in fact normal operation. The after-running of the cooling fans is deliberate and can sometimes last up to 16 minutes after switching the engine off.
What should I do if my engine fan does not turn off?
What should I do if the engine fan never turns off? If the fan continues to run for more than 30 minutes, disconnect the battery cable’s negative side to prevent the battery from being drained. Troubleshooting Tips. Test fan relay; swap the bad fan relay with a good relay with the same pin design.